Insulator-bracket



(No Model.)

W. N. BIOHBERG. INSULATOR BRACKET.

No. 492,394. Patented Feb. 28, 1893.

\IVITNESSES: INVENTOR:

[by 1M U NITED STATES PATENT OFFICE.

WILLIAM N. EICHBERG, OF CHICAGO, ILLINOIS.

lNSULATOR-BRACKET.

SPECIFICATION forming part of Letters Patent No. 492,394, dated February28, 1893.

Application filed November 28, 1892. Serial No. 453,321. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM N. EICHBERG, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented a new and useful Electric Insulator-Holder, of which thefollowing is a specification.

My invention relates to insulator holders which support wires forelectrical purposes, and my objects are to provide a means forsupporting the insulator which is adjustable so as to be capable ofbeing securely attached to the surface of trees,or other objects, atseveral different angles, so as to provide for the different angles tothe horizontal or vertical that such surfaces are presented in practice.

Another object is to provide means between the insulator and the base ofthe holder whereby the holder is flexible, to a certain degree, for thepurpose of releasing the holder from sudden shocks caused by the forceof the wind against the electric wires, and the means by which theseobjects are attained is fully described hereinafter, and is illustratedin the accompanying drawings, in which- Figure l is a side elevation ofan insulator and holder arranged to be attached to any vertical object.Fig. 2 is a front elevation of Fig. 1 showing electric wire in sideview. Fig. 3 is the base portion of Fig. 1 in side elevation showingadjustment for attachment of the base of the holder to a surface at anangle to a horizontal plane. Fig. 4 same as Fig. 3, with the exceptionthat, the adjustment of the base is for attachment to a horizontalsurface. Fig. 5 is a side elevation of the bracket arm detached from theother parts. Fig. 6 is a front elevation of Fig. 5 looking in thedirection of arrow A.

Similar letters indicate like parts throughout the several views.

' B is the base, which is provided with two lugs C and C, Fig. 2, whichproject outward, and between which is pivoted, on a pin D, an S shapedbracket E, which bracket has several notches E in which a pin F engagesto hold the base B at several different angles relative to the bracket.Bracket E, Fig. 5,

has a head B which is provided with screw threads fitted to receive thelower end of the coils of a helical spring G, upon whose top is screwedthe insulator H.

I is a wire for carrying a current of electricity, which wire is securedto insulator H.

At J and J are arms which project laterally from bracket E, for apurpose which will be described.

At K are slots to receive nails or screws by which the base of theholder is secured to any stationary object, L, shown in dotted line.

The ordinary rigid insulator holder must be made in several forms toadapt'it to the various angles that the surfaces of trees present forthe attachment of the base of a holder, but in my new adjustable devicefor the purpose the pin F is out when the device is not in use, the pinsbeing inserted to engage any one of the notches E after it is known theangle the base will take to insure a practically vertical position forthe spring G. Pin F can be riveted in position, or can be substituted bya bolt with head and screw nut, as is obvious.

In practice, the ordinary rigid insulator holder is torn from itsfastening frequently by the force of high winds, or the forcible contactof the branches of trees blown against the electric wire, and I haveprovided the spring G for the purpose of yielding laterally to suchforces and thus relieve the holder from sudden shocks.

The dotted lines, Fig. 1, show insulator and top of the spring forced toone side, and should the force be such as to carry the insulator to agreater amount to one side than is shown, the spring will contact one ofthe arms J, J, which will efiectnally prevent any farther movement ofthe insulator, and prevent it striking against the object to which baseB is attached. Spring G also relieves the electric wire from suddenshocks, as will be understood.

I claim as my invention- 1. An electric insulator holder comprising abracket and means for attaching said bracket to some object, saidbracket arm having a spring attached thereto, and an electric insulatorattached to said spring, said insulator adapted to support wire electricconductors by being connected to said bracket by means of said springfor the purpose stated.

2. An insulator holder comprising a base B, adapted to be attached toasupport, abracket arm E adjustably attached to said base, and a springhaving one end attached to said bracket, the other end of said springhaving an electric insulator attached thereto, said insulator adapted tosupport wire electric conductors, the several parts serving incombination for the purpose described.

3. An insulator holder comprising a stationary base, a bracket armadjustably attached to said base, substantially as described, saidbracket arm having one end of a spring attached thereto, to the otherend of which spring an electric insulator is attached, arms J and Jprojecting from bracket arm E, said arms WILLIAM N. EICHBERG. Witnesses:

OSCAR SNELL, A. F. BARNETT.

